By Harvey M. Deitel, Paul J. Deitel
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Additional resources for Instructor's Manual - Java How to Program, 5th Edition
DrawOval( 150, 60, 20, 25 ); } } // end class DrawOvals © Copyright 1992–2003 by Deitel & Associates, Inc. and Prentice Hall. All Rights Reserved. 18 Write an applet that allows the user to input the four arguments required by method draw- Oval, then draws an oval using the four input values. showInputDialog( "Enter width :" ); © Copyright 1992–2003 by Deitel & Associates, Inc. and Prentice Hall. All Rights Reserved. drawOval( upperLeftX, upperLeftY, width, height ); } } // end class DrawOval © Copyright 1992–2003 by Deitel & Associates, Inc.
All Rights Reserved. 28 Introduction to Java Applications Chapter 2 Using statements similar to the one shown eariler in this exercise, write an application that displays the integer equivalents of some uppercase letters, lowercase letters, digits and special symbols. Display the integer equivalents of the following: A B C a b c 0 1 2 $ * + / and the blank character. java // Program that prints a unicode character // and its integer equivalent. println( "The character " + ' ' + " has the value " + ( int ) ' ' ); } // end method main } // end class Display © Copyright 1992–2003 by Deitel & Associates, Inc.
Lang package; double is a primitive date type. Remember that names that start with a capital letter are normally class names. d) Type int is used to declare a floating-point number. ANS: False. Type double or type float can be used to declare a floating-point number. Type int is used to declare integers. parseDouble converts a String to a primitive double value. ANS: True. 3 Write Java statements to accomplish each of the following: a) Display a dialog asking the user to enter a floating-point number.